US7899304B2 - Method of recording thumbnail pictures onto a recording medium - Google Patents

Method of recording thumbnail pictures onto a recording medium Download PDF

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US7899304B2
US7899304B2 US10/341,402 US34140203A US7899304B2 US 7899304 B2 US7899304 B2 US 7899304B2 US 34140203 A US34140203 A US 34140203A US 7899304 B2 US7899304 B2 US 7899304B2
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file
thumbnail
information
mark
still
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US10/341,402
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US20030138236A1 (en
Inventor
Soung Hyun Um
Kang Soo Seo
Byung Jin Kim
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LG Electronics Inc
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LG Electronics Inc
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Assigned to LG ELECTRONICS INC. reassignment LG ELECTRONICS INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KIM, BYUNG JIN, SEO, KANG SOO, UM, SOUNG HYUN
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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/327—Table of contents
    • G11B27/329—Table of contents on a disc [VTOC]
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • G11B27/036—Insert-editing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/326—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier used signal is a video-frame or a video-field (P.I.P.)
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
    • G11B2220/215—Recordable discs
    • G11B2220/216—Rewritable discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/21—Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
    • G11B2220/215—Recordable discs
    • G11B2220/218—Write-once discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2541—Blu-ray discs; Blue laser DVR discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
    • G11B2220/2575—DVD-RAMs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02—Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031—Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • G11B27/034—Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N2201/3201—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N2201/3225—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title of data relating to an image, a page or a document
    • H04N2201/325—Modified version of the image, e.g. part of the image, image reduced in size or resolution, thumbnail or screennail
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N2201/3201—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N2201/3274—Storage or retrieval of prestored additional information

Definitions

  • the present invention relates to a method of recording thumbnail pictures for recorded still pictures onto a recording medium.
  • a disk-type recording medium such as a compact disk (CD) can store high-quality digital audio data permanently, so that it is very popular recording medium.
  • a digital versatile disk referred as ‘DVD’ hereinafter
  • a DVD can store much larger size than a CD, thus, high-quality moving picture or audio data are recorded on a DVD for much longer time. Therefore, a DVD will be used widely in the near future.
  • DVD-ROM for read-only
  • DVD-R for write-once
  • DVD-RAM for rewritable
  • rewritable DVD the standardization of data writing format is in progress.
  • DSC Digital Still Camera
  • Such a DSC usually has a memory chip of large storage capacity so that it can take high-quality pictures and store audio data associated with the stored pictures as well.
  • the taken pictures are encoded in the format of JPEG, or TIFF while the audio data are done in the format of PCM, u-Law PCM, or IMA-ADPCM.
  • FIG. 1 shows an illustrative DCF.
  • a DCIM Digital Camera IMages
  • Each subdirectory has 8-digit-long filename that is composed of three numeric digits and five character digits. The three numeric digits should be unique, for instance, one among 100 ⁇ 999, and the five character digits are arbitrarily chosen by a user. Because the three numeric digits are unique the subdirectories can be created up to 900.
  • a subdirectory, e.g., subdirectory ‘100ABCDE’ of FIG. 1 can accommodate many data files of which filename is 8-digits long.
  • the filename is composed of four numeric digits and four character digits. While the four character digits are chosen by a user the four numeric digits should be unique among data files if their attributes are different.
  • the data files are still pictures and/or audio files, respectively.
  • the still picture files have extension of ‘JPG’ or ‘TIF’ while the audio files encoded by PCM, u-Law PCM or IMA-ADPCM have extension of ‘WAV’.
  • the filenames of the data files can be same if their extensions are different. Therefore, when a picture file is to be dubbed with audio, a dubbed audio file can be linked with the picture file only if their filenames are made same.
  • a digital video recorder records video and audio data in a file structure shown in FIG. 2 .
  • the file structure of FIG. 2 has a DVR directory under a root directory.
  • the DVR directory includes a menu file ‘menu.tdat’, a mark file ‘mark.tdat’, and their index files ‘menu.tidx’ and ‘mark.tidx’.
  • the menu and the mark file have menu data and mark data respectively and the index files have search data to index menu and mark data in the menu and the mark file.
  • the ‘DVR’ directory is mandatory for motion picture recording of a DVR.
  • the ‘DVR’ directory has directories ‘PLAYLIST’, ‘CLIPINF’, ‘STREAM’, and ‘STILLINF’.
  • the ‘PLAYLIST’ directory includes playlist files (*.rpls,*.vpls) containing motion-picture and still-picture playitems and title management information.
  • the directory ‘CLIPINF’ includes clip information files (*.clpi) containing information on movie stream management and movie attribute and the directory ‘STREAM’ includes stream files (*.m2ts) containing actual motion-picture data stream packets.
  • the directory ‘STILLINF’ includes still-picture management file (*.stli) containing management information for search and presentation control of the still pictures.
  • the aforementioned recording medium of very large capacity is able to store enormous still pictures, so that it is preferable to record thumbnails of recorded still pictures in order to find a desired still picture or a still picture section easily.
  • a method of recording a thumbnail picture onto a recording medium in accordance with the present invention is characterized in that it comprises the steps of: recording onto a recording medium a thumbnail in a thumbnail management file that accommodates all thumbnails, each being associated with a still picture, a mark or a menu item; and writing link information to link the recorded thumbnail with an associated still picture, mark, or menu item.
  • Another method of recording a thumbnail picture onto a recording medium in accordance with the present invention is characterized in that it comprises the steps of: recording onto a recording medium thumbnails in separate thumbnail files, each including one thumbnail and being associated with a still picture, a mark or a menu item; and writing information to indicate whether or not there is a thumbnail file associated with a still picture, mark, or menu item.
  • FIG. 1 shows an illustrative DCF (Design rule for Camera File system) adopted by a digital still camera
  • FIG. 2 shows an illustrative file system adopted by a digital video recorder
  • FIG. 3 is a block diagram of a disk device which a method of recording thumbnails onto a rewritable recording medium in accordance with the present invention is embedded in;
  • FIGS. 4 to 8 show schematic thumbnail recording processes and management information related with thumbnail recording in accordance with the first embodiment of the present invention
  • FIGS. 9 to 12 show schematic thumbnail recording processes and management information related with thumbnail recording in accordance with the second embodiment of the present invention.
  • FIG. 13 shows a schematic thumbnail recording process in accordance with a combined embodiment of the first and the second.
  • FIG. 3 is a block diagram of a disk device which a method of recording thumbnail pictures onto a rewritable recording medium in accordance with the present invention is embedded in.
  • the disk device of FIG. 3 e.g., a DVR can record video/audio data and management information for searching and reproduction control onto a rewritable recording medium.
  • the disk device comprises, as shown in FIG. 3 , an input processing module, an output processing module, and a controller 19 conducting overall system control.
  • the input processing module is composed of two input switching units 10 and 11 , a still picture video 12 and a still picture audio encoder 13 , a movie video 14 and a movie audio encoder 15 , an MPEG 2 muxer 16 , a formatter 17 , and a DVR encoding DSP 18 while the output processing module is composed of two output switching units 30 and 31 , a still picture video 32 and a still picture audio decoder 33 , a movie video 34 and a movie audio decoder 35 , an MPEG 2 demuxer 36 , a parser 37 , and a DVR decoding DSP 38 .
  • the two input switching units 10 and 11 selectively connect their input signals to the still picture video 12 and the still picture audio encoder 13 or the movie video 14 and the movie audio encoder 15 in response to a switching control ‘CTL’ of the controller 19 .
  • the still picture encoders 12 and 13 encode video data from the first switching unit 10 to JPEG or TIFF format and audio data from the second switching unit 11 to PCM, u-Law PCM, or IMA-ADPCM format, respectively as a DSC does.
  • the movie encoders 14 and 15 encode video data from the first switching unit 10 to MPEG 2 format and audio data from the second switching unit 11 to AC-3, MPEG 1 layer 2, or LPCM format, respectively.
  • the MPEG 2 muxer 16 multiplexes the encoded video and audio data from the movie video 14 and the movie audio encoder 15 to produce MPEG 2 stream that is directed to the formatter 17 .
  • the formatter 17 segments or groups input data to yield successive data units, adds necessary head information to each data unit, and transmits them sequentially to the DVR encoding DSP 18 .
  • the data unit has a size suitable for a recording unit area of a rewritable recording disk.
  • the formatter 17 produces thumbnails of respective still pictures in accordance with a pre-specified thumbnail condition and it also produces management information for searching for and controlling reproduction of the re-sized still picture video and/or audio data, and the thumbnails.
  • the produced management information is delivered to the controller 19 .
  • the formatter 17 selects the encoded data or the MPEG 2 stream to segment or group the selected data to yield successive data units, adds necessary head information to each data unit, and transmits them sequentially to the DVR encoding DSP 18 .
  • the data unit has a size suitable for a recording unit area of a rewritable recording disk.
  • the formatter 17 also produces management information for searching for and controlling reproduction of the re-sized motion picture video and/or audio data. The produced management information is delivered to the controller 19 .
  • the DVD encoding DSP 18 constructs ECC (Error Correction Code) blocks with the successive data units having still or motion pictures, thumbnails and audio data and then modulates data of ECC blocks to corresponding recording waveforms that will form mark/space patterns on the surface of the rewritable recording disk.
  • the controller 19 controls data recording of the DVR encoding DSP 18 in accordance with the data type being recorded. That is, the controller 19 determines recording location, file and directory to record data, and so on based data type being recorded. If needed, information entered by a user is used.
  • the controller 19 records the management information received from the formatter 17 onto the rewritable recording disk through the DVR encoding DSP 18 .
  • FIGS. 4 to 8 show schematic thumbnail recording processes and management information related with thumbnail recording in accordance with the first embodiment of the present invention.
  • a DVR uses a recording structure compatible with moving picture recording structure to record and manage thumbnails of still pictures.
  • a management file e.g., a mark file ‘mark.tdat’ includes all created thumbnails and the index file ‘mark.tidx’ has location information of individual thumbnails included in the mark file. Furthermore, a mark field table allocated in a playlist includes index information of the location information written in the index file for the purpose of later rapid search.
  • the thumbnail ‘T’ is created for a representative mark or a menu item related with respective playlists included in the directory ‘PLAYLIST’ mentioned with reference to FIG. 2 , for a user bookmark, and/or for a resume mark.
  • the controller 19 stores the created thumbnails in the mark file ‘mark.tdat’ or the menu file ‘menu.tdat’ under the directory ‘DVR’.
  • the thumbnails may be created into separate files. Each thumbnail is created through size reduction of the formatter 17 from a still picture selected by a user.
  • a still clip mark is designated to a still picture among at least one still pictures or at least one still picture group (SPG) that is included in at least one data file, which is referred through a file system, covered by a playlist.
  • the controller 19 commands the formatter 17 to make a thumbnail of a still picture pointed by every still clip mark, and then inserts the thumbnails made by the formatter 17 in the mark file ‘mark.tdat’ or in the menu file ‘menu.tdat’.
  • the controller 19 creates index information pointing to the thumbnail location entries and writes the index information in respective pieces of mark information ‘marks # 1 to #m’ allocated in the playlist or in respective pieces of still clip mark information allocated in a still-picture information file (*.stli) under the directory ‘STILLINF’, as shown in FIG. 5 .
  • Each piece of the index information points each location entry ‘Idx # 1 . . . Idx #p’ created in the index file ‘mark.tidx’ or ‘menu.tidx’ by the controller 19 .
  • each location entry includes start address and size of each thumbnail stored in the mark file ‘mark.tdat’ or in the menu file ‘menu.tdat’.
  • the mark information ‘marks # 1 to #m’ can also include location information pointing a allocation unit, which is allocated for a still picture whose thumbnail is created, having information of start address and size on the file system.
  • the playlist accommodates the aforementioned mark information in a mark field table ‘PlayListMark’ as shown in FIG. 6 .
  • the mark field table ‘PlayListMark’ is composed of mark general information ‘Mark_GI’ and plural pieces of mark information ‘Marks # 1 to #k’.
  • the mark general information ‘Mark_GI’ includes the number of mark information and each piece of mark information consists of a mark type ‘mark_type’, an associated playitem number ‘Playitem_number’, an associated picture number ‘Picture_number’, a thumbnail index number ‘Thumb_index’ which is indirect link information to a thumbnail, and a mark-created time ‘Created Time’.
  • the still clip mark information related with still-picture groups can be accommodated in the still-picture information file (*.stli) structured as FIG. 7 .
  • the structure of FIG. 7 is composed of still-picture general information field ‘Stillinfo_GI’, still-picture group information field ‘SPGI’, and a still clip mark field table ‘StillClipMark’ which the still clip mark information is written in.
  • the still clip mark field table ‘StillClipMark’ is composed of mark general information ‘Mark_GI’ and plural pieces of still clip mark information ‘Marks # 1 to #k’.
  • the mark general information ‘Mark_GI’ includes the number of mark information and each piece of still clip mark information consists of a mark type ‘mark_type’, an identification of still-picture group ‘SPG_ID’, an associated picture number ‘Picture_number’, a thumbnail index number ‘Thumb_index’ which is indirect link information to a thumbnail, and a mark-created time ‘Created Time’.
  • the index file (*.tidx) has thumbnail location information structured as FIG. 8 .
  • the thumbnail location information which is link information directed to respective thumbnails, is composed of thumbnail index general information ‘ThumbIndex_GI’ and an index table that includes location entries ‘Index # 1 to #k’.
  • the thumbnail index general information ‘ThumbIndex_GI’ includes the number of location entries ‘Index # 1 to #k’ and each entry has start address and size information of an associated thumbnail.
  • thumbnails of playlist representative marks or menu items and thumbnails of user bookmarks or resume marks can be individually found from the mark or the menu file and then presented to a user.
  • an individual thumbnail linked with a picture that a still clip mark is on among pictures or SPGs can be also identified from the mark or the menu file with reference to the above-explained link information of FIGS. 6 to 8 and the identified thumbnail is then presented.
  • FIGS. 9 to 12 show schematic thumbnail recording processes and management information related with thumbnail recording in accordance with the second embodiment of the present invention.
  • a DVR uses a recording structure compatible with still picture recording structure of a DSC to record and manage thumbnails of still pictures.
  • a thumbnail file (*.THM) is created for each thumbnail and thumbnail files are not created in navigation data area of a recording medium as shown in FIG. 9 .
  • the mark information reserved in a playlist etc. includes, in connection with thumbnail, only a flag to indicative of presence or absence of a related thumbnail as shown in FIG. 10 , instead of link information.
  • FIG. 9 shows that thumbnails ‘T’ of chosen still pictures among respective SPGs are recorded as general disk files (*.THM) the same as still pictures.
  • FIG. 10 shows that a playlist or a still-picture information file has mark information with a flag ‘Thumb_flag’ that is ‘1’ in case of presence of a related thumbnail and is ‘0’ in case of absence of a related thumbnail.
  • FIG. 11 is a playlist structured in accordance with the second embodiment of the present invention.
  • the playlist of FIG. 11 includes a mark field table ‘PlayListMark’ that is composed of mark general information ‘Mark_GI’ and plural pieces of mark information ‘Marks # 1 to #k’.
  • the mark general information ‘Mark_GI’ includes the number of mark information and each piece of mark information consists of a mark type ‘mark_type’, an associated playitem number ‘Playitem_number’, an associated picture number ‘Picture_number’, a thumbnail presence/absence flag ‘Thumb_flag’ which is indicative of presence or absence of a mark-corresponding thumbnail, and a mark-created time ‘Created Time’.
  • the mark type is one among playlist representative mark, user bookmark, and resume mark, and the picture number can be replaced with file number, filename or entry number.
  • the still clip mark information related with still-picture groups can be accommodated in the still-picture information file (*.stli) structured as FIG. 12 .
  • the structure of FIG. 12 is composed of still-picture general information field ‘Stillinfo_GI’, still-picture group information field ‘SPGI’, and a still clip mark field table ‘StillClipMark’ which the still clip mark information is written in.
  • the still clip mark field table ‘StillClipMark’ is composed of mark general information ‘Mark_GI’ and plural pieces of mark information ‘Marks # 1 to #k’.
  • the mark general information ‘Mark_GI’ includes the number of mark information and each piece of mark information consists of a mark type ‘mark_type’, an identification of still-picture group ‘SPG_ID’, an associated picture number ‘Picture_number’, a thumbnail presence/absence flag ‘Thumb_flag’ which is indicative of presence or absence of a mark-corresponding thumbnail, and a mark-created time ‘Created Time’
  • a mark type ‘mark_type’ an identification of still-picture group ‘SPG_ID’, an associated picture number ‘Picture_number’, a thumbnail presence/absence flag ‘Thumb_flag’ which is indicative of presence or absence of a mark-corresponding thumbnail, and a mark-created time ‘Created Time’
  • thumbnails related with pictures, marks, and/or menu items are recorded collectively in a single management file (mark.tdat or menu.tdat) and individually in separate data files at the same time in order that either might be used later.
  • the above-explained thumbnail recording method ensures a user to find easily a desired still picture or a still-picture section through viewing thumbnails recorded in connection with still pictures, marks, and/or menu items.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)
  • Television Signal Processing For Recording (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
  • Processing Or Creating Images (AREA)
US10/341,402 2002-01-18 2003-01-14 Method of recording thumbnail pictures onto a recording medium Expired - Fee Related US7899304B2 (en)

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KR2002-0003096 2002-01-18
KR10-2002-0003096 2002-01-18
KR1020020003096A KR20030062737A (ko) 2002-01-18 2002-01-18 재기록 가능 고밀도 기록매체의 축소영상 기록방법

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EP (1) EP1329892B1 (zh)
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US20080059509A1 (en) * 2004-06-11 2008-03-06 Sony Corporation Data Processing Device, Data Processing Method, Program, Program Recording Medium, Data Recording Medium, and Data Structure

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CN1433003A (zh) 2003-07-30
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